/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                        *
 * Copyright (C) 1999-2006 ComPiere, Inc. All Rights Reserved.                *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.model;

import java.math.BigDecimal;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;
import java.util.logging.Level;

import org.compiere.util.DB;


/**
 *	Resource Assignment Callout
 *	
 *  @author Jorg Janke
 *  @version $Id: CalloutAssignment.java,v 1.3 2006/07/30 00:51:03 jjanke Exp $
 */
public class CalloutBooking extends CalloutEngine
{

	/**
	 *	ET Booking.
	 *		- called from ET_Booking.Arrival
	 *		- sets Description with Vehicle RegNo
	 *			- Qty.. 
	 *	@param ctx context
	 *	@param WindowNo window no
	 *	@param mTab tab
	 *	@param mField field
	 *	@param value value
	 *	@return null or error message
	 */
	public String getAvailable (Properties ctx, int WindowNo, GridTab mTab, GridField mField, Object value)
	{
		if (isCalloutActive() || value == null)
			return "";
		//	get value
		String busNo = "";
		String departure = mTab.get_ValueAsString("ET_TripBegin");
		String arrival = value.toString();
		if (arrival.equals(null))
			return "";

		String sql = "SELECT ev.vehicle_regno "
			+ "FROM et_Vehicle ev"
			+ " WHERE ev.et_Departure=? and ev.et_Arrival = ?";
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		try
		{
			pstmt = DB.prepareStatement(sql, null);
			pstmt.setString(1, departure);
			pstmt.setString(2, arrival);
			rs = pstmt.executeQuery();
			if (rs.next())
			{
 				busNo = rs.getString(1);
 			}
		}
		catch (SQLException e)
		{
			log.log(Level.SEVERE, "product", e);
		}
		finally
		{
			DB.close(rs, pstmt);
			rs = null; pstmt = null;
		}

		log.fine("Vehicle RegNo =" + busNo + " for  Departure =" + departure);
		if (!busNo.equals(""))
		{
			mTab.setValue ("Description", new String (busNo));
			mTab.setValue("et_Departure", departure);
			mTab.setValue("et_Arrival", arrival);
		}
		return "";
	}	//	product

}	//	CalloutAssignment
